如图,将
沿
方向平移1个单位长度后得到
,若
的周长等于9,则四边形
的周长等于( )
![](https://img.xkw.com/dksih/QBM/2020/5/6/2456906656980992/2457728471736320/STEM/c14bd0da-70ce-4303-bccc-7046d10280e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85719346f464a101d365d42be27450a3.png)
![](https://img.xkw.com/dksih/QBM/2020/5/6/2456906656980992/2457728471736320/STEM/c14bd0da-70ce-4303-bccc-7046d10280e0.png)
A.13 | B.12 | C.11 | D.10 |
更新时间:2020-05-07 19:24:17
|
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【推荐2】如图,将△ABC沿BC边上的中线AD平移到△A'B'C'的位置,已知△ABC的面积为18,阴影部分三角形的面积为8.若AA'=1,则A'D等于 ( )
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A.3 | B.2 | C.![]() | D.![]() |
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